Sorry for the disturbing, I will be on hollidays the next week. If you have any suggestion, thanks to contact Antoine (my coworker).
Regards, Mathieu 2011/12/23 External Mathieu DEDECKER (CAMPUS) <[email protected] > > Hi @All, > > We meet a performance problem with our OpenLDAP. > > We think that we face a problem with the index of the database, and we > think that the problem can be resolve by tunning the config (but not sure). > > We would like to be sure that our configuration is correct, in order to > confirm if we are on a wrong track or not. > > *[Description]* > > We have an attribute (cardNumber) which is indexed. > > When we request the indexed attribute (cardNumber) with an LDAP Client > (Ldapbrowser), we have either fast or very long response time. > > For the long response time, the CPU of the server hits 100%. > > *For example*: > > Request1: cardnumber=2098001010034 (less than 1sec) > Request2: cardnumber=2090389917486 (nearly 20 sec). > > By checking the hit ratio of the attribute, we can see that cache is > correctly used (97%). > > *[Details]* > > - We are running on a VM with RedHat with 4 process with 24 Go RAM. > - The version of the OpenLDAP is 2.4.16. > - We have 2 500 000 accounts. > > *[Attachment]* > > - *201111223_os.txt* -> informations about OS and > Hardware. > - *openldap_version.txt* -> informations about the version > of OpenLDAP. > - *20111220_stats.txt* -> informations about index and > perf. > - *olcDatabase={1}hdb.ldif.txt * -> informations about hdb config. > > Do not hesitate if you need some more informations. > > Thank you for your help (: > > Mathieu > > >
